Time clock



B. MOSS TIME CLOCK Filed July 17, 1939 Feb. 27, 1940.

2 Sheets-Sheet 1 6 l g 45 \P 4.6

INVENTOR.

ATTORNEYS.

Feb. 27, 1940.

B. MOSS TIME CLOCK Filed July 17, 1939 2 Sheets-Sheet 2 Bergwm'n flossINVENTOR.

lll ll ATTORNEYS.

Patented Feb. 27, 1940 t v 2,191,770

" UNITED STATES PATENT OFFICE TIME oLooK Benjamin Moss, Manitowoc, Wis.,

Application July 17, 1939, Serial No, 284,991

7 3 Claims. (01. 16117) f This invention relates to time clocks designederence l designates a suitable case provided with primarily for use bychess players. Clocks heretWo'clo-ck dials indicated at 2 and 3respectively, tofore employed have utilized two synchronized there beingassociated with each clock dial an clock mechanisms with which is used acontrolhour hand 4 and a minute hand 5.

v 6 ling member which acts upon the balance wheels A Clo k mec s o tusual yi is located 6 of the respective clocks to stop or to releasethem. in a housing 6 Sui b Supported Within the case Not only are clocksof this type very expensive i and the main arbor lof the-clock mechanismbecause of the kind of mechanism required and D J' C S m housing andthrough Spaced the care with Which they must be balanced, but p a es 01fra e members 8 and 9 one of Which is they also are objectionablebecause they quickly anchored to housing 6 as shown at ID. The developdefects due to the abrupt stopping and plates or frame members 8 and 9are held to- -starting of the balance wheel and because of gethel" i p drelation y O S H and te the increased amount of mechanism employed,posed sleeves l2 so as thllS 130 form arigid struc- An object of thepresent invention isto pro- 7 threw vide a clock designed primarily foruse by chess Arbor 7 s mounted, heal ts C W thin 1 players which has twodials and a set of hands Spaced g a s d g being formed With Cooperatingwith h di l b t only emplgys a a toothed extension I5 constituting aclutch memsingle clock mechanism, ther being an intermeber while anothersimilar clutch member I6 is diate mechanism of new and novelconstruction eXtended from e ear 4- ese clutch mem- 0 b means of himotion nay be t a tt d bers l5 and I6 aremounted for rotation withinfrom the clock mechanism to the hands on either the respective Plates 8and dial while the hands on the other dial are sta- A Spider l7 5mOuhted 0H bor 7 b tween the tionary. 3 I l gears l3 and I4 and isanchored to the plates 8 A further-object is to provide a means .by whicand 9 as Shown at [it Between this Spider and this intermediatemechanism can be actuated to p e 9 is Suppo ted a gear 9 whichi's inconstant 2 .operate t h d on it dial, mesh with gear [3. Another similargear 20 is With the foregoing and other objects in view, interposedbetween the spider and the other plate which will appear s thedescription proceeds 8 and is in constant mesh with the gear l4. theinvention resides in the combination and Gear 20 transmits motion thmugha ain of arrangement of parts and in the details of 'congears 2| t0 e 22and 23 0f the-hands struction hereinafter described and claimed, it 4and 5 on dial 2 While another S lar train of being understood thatchanges in the precise gears 24 transmits motion from ear W to theembodiment of the invention herein described, Mrs 25 and 23 0f the hands4 5 0n dial 3.

ay be made Within the scope of what is claimed, These trains of gearsare so proportioned that without departing-from the spirit of theinvenwhen either e of t is rotatinathe hands 35 tion, I 4 and 5 driventhereby will rotate at the proper In'the accompanying drawings thepreferred ratioform'of the invention has been shown A guide 2! isextended from the housing 6 and In Said drawings: is fixedly joinedthereto. Mounted on' this guide 40 Figure l is a View partly in frontelevation and is a Slide 28 having Spaced upwardly extending partly insection of a clock embodying the presforks 29 and a therewith Fork 29 m;improvements 1 I 1 extends into an annular groove 3| formed in a Figure2 is a horizontal Section through the toothed clutch member 32 which isslidable on case of th dock and through the dials, v and rotatable withthe arbor where it can move 45 mech i m in the c being shown in plan,into and out of engagement with the clutch mem- Figure 3 is a sectiontaken substantially on Thefolked member 30 is e ed n an the line 3-3 ofFigure ,1, said section being enannular groove 33 formed in a toothedclutch larged d showing only a ortio f th e h member 34 which isslidable on and rotatable 5 anism, I with arbor 1 between the free endof said arbor Figure 4 is a section on line 4--4 of Figure 3, a d theplate 9. This clutch member 34 is mov- .parts being broken away. v ableinto and out of engagement with clutch Figure 5 is a section on line5--5 of Figure 3. member l5. Figure 6 is a section on line 66 of Figure3. An actuating lever 35 is pivotally mounted at 5 Referring to thefigures by characters of ref- 36 and is connected at one end to one ofthe forked members 29, as shown at 31. The other end of this lever isextended through an opening 38 in the guide 21 and thence through a camslot 39 formed in a disk 40 which constitutes one arm of a leverfulcrumed, near the periphery of the disk, on a fixed bracket 4|, asindicated at 42. The other arm of this lever, indicated at 43, ispivotally connected at 44 to an actuating rod 45 which extendstransversely of and is slidable within the case I. The ends of the rodproject from the case and are provided with knobs 46.

A guide plate 41 is fixedly secured to bracket 4! and has a straightslot 48 therein through which the lever 35 extends. 49 is seated in thebottom of case I and exerts a constant thrust upwardly against anenlargement or foot 50 at the lower end of lever 35.

The cam slot 39 is so proportioned that when disk 40 is in anintermediate position, lever 35 is located in the center of said slotand also in the center of slot 48. At this time the lever is vertical orin direct'line with spring 49 so that said spring. exerts a thrustlongitudinally of the lever. Furthermore, when the parts are thuslocated, the two slidable clutch members 32 and 34 are out of engagementwith the respective clutch members l8 and I so that motion will not betransmitted from arbor l to either of the gear trains.

When it is desired to. transmit motion to the hands on one dial from theclock mechanism, rod 45 is thrust in one direction so as to cause leverarm 42 to swing and produce a corresponding movement of the disk arm 40.The cam slot will thus operate to thrust lever 35 in one direction, thismovement being accelerated by the spring 49 as soon as the spring andlever 35 are moved out of a dead center position. Consequently selectedclutch member 32 or 34 will engage the adjacent gear clutch member so asto couple the same to arbor I and cause motion to be transmitted fromthe slot mechanism to the selected clock hands. The parts will remain inthis position until the rod 45 is shifted to its other extreme positionwhereupon lever .35 will be actuated to disengage the clutch memberpreviously shifted into engagement and then engage the other clutchmember so that motion will be transmitted from the arbor to the otherpair of clock hands. This movement likewise Will be accelerated by thespring 49. When neither of the sets of hands is to be operated, the rodis pushed to an intermediate position so as to bring the spring 49 andlever 35into alignment as shown by full lines in Figure 3.

By providing a structure such as described, it becomes necessary toutilize only one clock mechanism, this being utilized to operate eitherof two gear chains leading to the hands of the separate clock dials.Consequently, the resultant structure is less expensive and lesscomplicated than one A coiled spring requiring two complete clockmechanisms and, furthermore, the mechanism is not caused to deterioratebecause of sudden stopping and starting as occurs where the balancewheels are abruptly stopped by means heretofore devised.

What is claimed is:

1. A time clock including separate dials, hands movable on each dial, atrain of gears for operating the hands on each dial, a clock mechanismincluding a main arbor, opposed clutch members slidable on and rotatablewith the arbor, and means under the control of an operator for shiftingthe clutch members to simultaneously couple the arbor to one train ofgears and uncouple it from the other train of gears.

2. A time clock including separate dials, hands movable on each dial, atrain of gears for operating the hands on each dial, a clock mechanismincluding a main arbor, opposed clutch members slidable on and rotatablewith the arbor, and means under the control of an operator for shiftingthe clutch members to simultaneously couple the arbor to one train ofgears and uncouple it from the other train of gears, said meansincluding connected members engaging adapted to operate the respectiveclutch members, a lever operatively connected at one end to the clutchengaging members, a pivoted actuating member having a cam slot throughwhich one end of the portion of the lever extends, a guide elementhaving a straight slot crossing the cam slot and through which the leverextends, means under the control of an operator for shifting theactuating member to move the lever along the guide slot when subjectedto thrusts from one of the walls of the cam slot, and a spring exertinga constant tension against one end of the lever for holding said leverin either extreme position to which it may be shifted by the walls ofthe cam slot.

3. A time clock including separate dials, a pair of hands movable oneachdial, a single clock mechanism including a main arbor, separate trainsof gears normally uncoupled from the arbor for transmitting motion tothe hands on the respective dials, each train of gears including a, gearin which the arbor is mounted to rotate, clutch members carried by thegears on the arbor and rotatable therewith, clutch members slidablymounted on and rotatable with the arbor and shiftable into engagementwith the respective gear clutch members, means embracing the trains ofgears and engaging the respective shiftable clutch members for movingone of said members into engagement with a gear clutch member and theother one out of engagement with the other gear clutch member, ashiftable actuating rod, means actuated thereby for moving the clutchshifting means, and a spring for holding the clutch shifting meansyieldingly in either extreme position.

BENJAMIN MCSS.

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